When designing some aluminum extrusion shelves for my 3D printers, I came to the point where I needed to mount some MDF shelves inside the aluminum frame. In the past, I used six t-bracket joining plates. Two on each long side, one on each short side. I wanted something more elegant. I couldn't find an existing design, so I designed it. I published the design on [GitHub](https://github.com/cwimmer/2020-corner-shelf-support). I'm had a batch of these manufactured in 6016 aluminum. [[Whoami|Contact me]] if you are interested in some. I bought a [[Carvera Air]] so I can produce projects like this in-house instead of outsourcing the manufacturing.  ![[Discussions]]